ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter F, 1-1/4" Overall Lg

This drill bit is used for precision drilling in metalworking and aerospace applications. Its threaded shank (1/4"-28) allows secure mounting in tool holders, while the 0.2570-inch Letter F diameter and black oxide HSS construction suit high-tolerance hole making. It meets NAS 965 Type B specifications for demanding industrial tasks.

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit (MPN 953HSFSS) has a 0.2570-inch diameter, 1/4"-28 thread size, and 1-1/4-inch overall length. It is made of black oxide high-speed steel and complies with NAS 965 Type B. The Letter F size is ideal for precision drilling in aerospace and metal fabrication.

3G Electric supplies ROCKY MOUNTAIN TWIST Threaded Shank Drill Bits worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source the 953HSFSS or other sizes. We provide reliable procurement for aerospace and manufacturing needs.

Select based on required hole diameter and thread compatibility. The Letter F bit (0.2570-inch) with 1/4"-28 shank fits standard tool holders. Ensure your application matches the black oxide HSS material for ferrous metals. For NAS 965 Type B compliance, verify the part number 953HSFSS. 3G Electric can assist with sizing and sourcing.